MLS - ideal as task lighting for use in medical facilities. A 8.125 in. (206 mm) diameter shade with inner reflector and 5-ring louver eliminates glare and protects the bulb from accidental touch or breakage. Heavy duty, 20-gauge, CRS K-arm with 0.5 in. (13 mm) square tubing and internal tempered steel springs assures proper balance and ease of movement while providing optimal durability.